Lighting fixture



FIG. 1 is a perspective view from below of a lighting fixture in accordance with my design;

FIG. 2 is a side elevation view of the lighting fixture in accordance with my design;

FIG. 3 is a top plan view of the lighting fixture in accordance with my design; and,

FIG. 4 is a bottom plan view of the lighting fixture in accordance with my design.

The broken lines showing environmental structure are for illustrative purposes and form no part of the claimed design. 

The ornamental design for the lighting fixture, as shown and described. 